Copies of engineering appraisals made by Freeman Fox and Partners for the Science Research Council of Fogo, in the Cape Verde Islands, and of Mauna Kea, Hawaii Island, as a prospective location for the Northern Hemisphere Observatory, July 1973.

A copy of a draft memorandum on an 'Assessment of Madeira (as at 12.12.73)', with contour maps of Mauna Kea.

A copy of an undated report prepared by members of the Institute for Astronomy, University of Hawaii, for the Northern Hemisphere Observatory Planning Committee entitled 'Evaluation of Mauna Kea, Hawaii, as an Observatory Site'.

A draft copy of a paper entitled 'Memorandum of Understanding among the Centre National de la Recherche Scientifique of France the National Research Council of Canada [and] the University of Hawaii' setting out their joint plans for an observatory on Mauna Kea, Hawaii, dated 23 February 1973.

A copy of a memorandum prepared by Bennet McInnes for the Northern Hemisphere Observatory Planning Committee on 'A Tentative Comparison of Mauna Kea (Hawaii), Encumeada Alta (Madeira) and Fuente Nueva (La Palma)', dated 16 October 1973.

A copy of a memorandum by Bennet McInnes, Royal Observatory, Edinburgh, 21 May 1973, entitled 'A Tentative Comparison of Mauna Kea with Fuente Nueva', relating to the progress of the site testing project for the Northern Hemisphere Observatory.

Copies of three memoranda prepared by Bennet McInnes for the Northern Hemisphere Observatory Policy Committee: 'Ordinances Designed to Limit Astronomical Light Pollution', 'Selection of the Site' and 'Meteorological Publication of Interest to the Project'.

A copy of a press release from the National Research Council Canada announcing their cooperation with France in the construction of a large optical telescope to be built on Mauna Kea, Hawaii.

A copy of a report on 'Aerodynamic Tests' written for the Science Research Council by members of the staff of the Ecole Nationale Superieure D'Arts et Metiers, Paris, 2 May 1974, regarding the determination of the degree of turbulence, in terms of altitude and wind direction, of Mauna Kea, Hawaii.

A copy of a report by H. Bradt, E. Lyon and J. McClintock of the Massachusetts Institute of Technology Center for Space Research entitled 'A Plan for an MIT Three-Meter Optical Telescope on Mauna Kea, Hawaii', March 1974.

A copy of a report by John Hutchinson, 21 March 1973, on a visit by Dr Jefferies to the Mauna Kea site on 19 March, and on the discussion that followed this visit.